/* roulang page: index */
:root{
      --bg:#0f0711;
      --bg-2:#180b17;
      --surface:#fff7f5;
      --surface-2:#fff1ec;
      --ink:#1b1119;
      --muted:#765f69;
      --soft:#b9939d;
      --line:rgba(255,255,255,.16);
      --line-dark:rgba(55,25,42,.12);
      --brand:#ff3e72;
      --brand-2:#ff9f43;
      --brand-3:#8b5cf6;
      --green:#37d399;
      --radius-lg:30px;
      --radius-md:22px;
      --radius-sm:14px;
      --shadow:0 20px 60px rgba(18,8,20,.18);
      --shadow-strong:0 35px 100px rgba(255,62,114,.22);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Microsoft YaHei","PingFang SC",Arial,sans-serif;
      line-height:1.65;
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 0%, rgba(255,62,114,.34), transparent 30%),
        radial-gradient(circle at 88% 12%, rgba(139,92,246,.28), transparent 34%),
        linear-gradient(180deg,#12070f 0%,#1a0c16 32%,#fff7f4 32%,#fff8f5 100%);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(255,62,114,.24);color:#fff}
    .site-container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .skip-link{position:absolute;left:-999px;top:10px;background:#fff;color:#111;padding:10px 14px;border-radius:12px;z-index:1000}
    .skip-link:focus{left:14px;outline:3px solid rgba(255,159,67,.6)}
    .site-header{
      position:sticky;top:0;z-index:80;
      border-bottom:1px solid rgba(255,255,255,.12);
      background:rgba(18,7,16,.78);
      backdrop-filter:blur(18px);
      box-shadow:0 10px 40px rgba(0,0,0,.16);
    }
    .nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:900;letter-spacing:-.02em}
    .brand-mark{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      color:#fff;font-weight:900;
      background:linear-gradient(135deg,var(--brand),var(--brand-2) 56%,var(--brand-3));
      box-shadow:0 16px 38px rgba(255,62,114,.32);
    }
    .brand-text{font-size:18px;white-space:nowrap}
    .nav-area{display:flex;align-items:center;gap:14px}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-link{
      color:rgba(255,255,255,.78);
      padding:10px 15px;border-radius:999px;
      font-size:14px;font-weight:700;
      transition:.22s ease;
    }
    .nav-link:hover,.nav-link.active{color:#fff;background:rgba(255,255,255,.12)}
    .nav-link:focus-visible,.btn:focus-visible,.faq-toggle:focus-visible,.mobile-toggle:focus-visible,input:focus-visible{
      outline:3px solid rgba(255,159,67,.55);outline-offset:3px;
    }
    .nav-search{
      width:238px;height:42px;border-radius:999px;
      display:flex;align-items:center;gap:8px;
      padding:0 14px;border:1px solid rgba(255,255,255,.13);
      background:rgba(255,255,255,.08);
      color:#fff;
    }
    .nav-search input{
      width:100%;border:0;outline:0;background:transparent;color:#fff;font-size:13px;
    }
    .nav-search input::placeholder{color:rgba(255,255,255,.55)}
    .nav-cta{
      color:#160b11;background:linear-gradient(135deg,#fff,#ffe2d3);
      padding:10px 16px;border-radius:999px;font-weight:900;font-size:14px;
      box-shadow:0 12px 30px rgba(255,159,67,.18);
      transition:.22s ease;
    }
    .nav-cta:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(255,159,67,.28)}
    .mobile-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      background:rgba(255,255,255,.1);color:#fff;
    }
    .mobile-panel{display:none;padding:0 0 18px}
    .mobile-panel.open{display:block}
    .mobile-panel .nav-link,.mobile-panel .nav-cta{display:block;margin:8px 0;text-align:center}
    main{position:relative}
    .section{padding:86px 0}
    .section-tight{padding:64px 0}
    .section-kicker{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      color:#9a2547;background:rgba(255,62,114,.1);
      border:1px solid rgba(255,62,114,.16);
      font-weight:900;font-size:13px;
    }
    .section-title{
      margin:16px 0 12px;
      font-size:clamp(30px,4vw,50px);
      line-height:1.12;letter-spacing:-.04em;font-weight:950;
    }
    .section-desc{max-width:740px;color:var(--muted);font-size:17px}
    .hero{
      min-height:720px;color:#fff;display:flex;align-items:center;
      padding:86px 0 70px;position:relative;overflow:hidden;
      background:
        linear-gradient(115deg,rgba(15,7,17,.92),rgba(15,7,17,.62) 55%,rgba(15,7,17,.96)),
        radial-gradient(circle at 70% 22%,rgba(255,159,67,.46),transparent 24%),
        radial-gradient(circle at 22% 78%,rgba(255,62,114,.45),transparent 28%);
    }
    .hero:before{
      content:"";position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px),
        linear-gradient(0deg,rgba(255,255,255,.04) 1px,transparent 1px);
      background-size:58px 58px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 82%);
      pointer-events:none;
    }
    .hero:after{
      content:"";position:absolute;right:-140px;top:80px;width:520px;height:520px;
      border-radius:50%;border:1px solid rgba(255,255,255,.12);
      box-shadow:inset 0 0 120px rgba(255,62,114,.12);
    }
    .hero-grid{
      position:relative;z-index:2;
      display:grid;grid-template-columns:1.08fr .92fr;gap:34px;align-items:stretch;
    }
    .hero-poster{
      padding:44px;border-radius:var(--radius-lg);
      min-height:520px;display:flex;flex-direction:column;justify-content:space-between;
      background:
        linear-gradient(145deg,rgba(255,255,255,.14),rgba(255,255,255,.04)),
        radial-gradient(circle at 15% 10%,rgba(255,255,255,.16),transparent 26%);
      border:1px solid rgba(255,255,255,.16);
      box-shadow:var(--shadow-strong);
      backdrop-filter:blur(16px);
      overflow:hidden;position:relative;
    }
    .hero-poster:before{
      content:"";position:absolute;inset:auto -80px -180px auto;width:430px;height:430px;border-radius:50%;
      background:linear-gradient(135deg,rgba(255,62,114,.42),rgba(255,159,67,.24));
      filter:blur(4px);
    }
    .hero-labels{display:flex;flex-wrap:wrap;gap:10px;position:relative;z-index:1}
    .label{
      display:inline-flex;align-items:center;gap:7px;
      border-radius:999px;padding:8px 12px;
      background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.16);
      color:rgba(255,255,255,.88);font-size:13px;font-weight:800;
    }
    .hero h1{
      position:relative;z-index:1;
      margin:56px 0 18px;font-size:clamp(42px,6.8vw,82px);
      line-height:.98;letter-spacing:-.07em;font-weight:1000;
      max-width:820px;
    }
    .hero-lead{
      position:relative;z-index:1;
      max-width:720px;color:rgba(255,255,255,.78);font-size:18px;line-height:1.85;
    }
    .hero-actions{position:relative;z-index:1;margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:48px;padding:13px 20px;border-radius:999px;
      font-weight:950;transition:.24s ease;border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      color:#211016;background:linear-gradient(135deg,#fff,#ffd7c0 55%,#ffb45f);
      box-shadow:0 18px 40px rgba(255,159,67,.25);
    }
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 22px 54px rgba(255,159,67,.36)}
    .btn-secondary{color:#fff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18)}
    .btn-secondary:hover{background:rgba(255,255,255,.17);transform:translateY(-3px)}
    .btn-dark{background:#1b1119;color:#fff}
    .btn-dark:hover{background:#2a1724;transform:translateY(-2px)}
    .btn-soft{background:rgba(255,62,114,.1);color:#9a2547;border-color:rgba(255,62,114,.14)}
    .btn-soft:hover{background:rgba(255,62,114,.16);transform:translateY(-2px)}
    .group-card{
      align-self:stretch;border-radius:var(--radius-lg);
      padding:28px;background:linear-gradient(180deg,rgba(255,247,245,.96),rgba(255,226,216,.92));
      color:var(--ink);box-shadow:0 30px 90px rgba(0,0,0,.24);
      display:flex;flex-direction:column;gap:20px;position:relative;overflow:hidden;
    }
    .group-card:before{
      content:"";position:absolute;inset:0;
      background:radial-gradient(circle at 82% 12%,rgba(255,62,114,.26),transparent 30%);
      pointer-events:none;
    }
    .group-top{position:relative;display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
    .group-title{font-size:22px;font-weight:1000;letter-spacing:-.03em}
    .status-badge{padding:7px 10px;border-radius:999px;background:#1b1119;color:#fff;font-size:12px;font-weight:950}
    .group-meter{position:relative;padding:22px;border-radius:24px;background:#fff;border:1px solid rgba(55,25,42,.1)}
    .meter-row{display:flex;align-items:center;justify-content:space-between;font-weight:900;margin-bottom:12px}
    .meter-track{height:12px;border-radius:999px;background:#f1d9d3;overflow:hidden}
    .meter-fill{height:100%;width:70%;border-radius:inherit;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
    .member-dots{display:flex;margin-top:18px}
    .member-dots span{
      width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,#211016,#6d243d);color:#fff;border:2px solid #fff;
      margin-right:-8px;font-size:12px;font-weight:900;
    }
    .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;position:relative}
    .stat-mini{padding:16px;border-radius:20px;background:rgba(255,255,255,.68);border:1px solid rgba(55,25,42,.08)}
    .stat-mini strong{display:block;font-size:24px;line-height:1;font-weight:1000}
    .stat-mini span{font-size:12px;color:var(--muted);font-weight:800}
    .poster-strip{
      margin-top:auto;border-radius:24px;overflow:hidden;
      display:grid;grid-template-columns:1.3fr .7fr;min-height:126px;
      border:1px solid rgba(55,25,42,.1);position:relative;
    }
    .poster-strip .strip-main{
      padding:20px;background:linear-gradient(135deg,#25111e,#6b1e42 54%,#ff774f);color:#fff;
    }
    .poster-strip .strip-side{
      background:
        linear-gradient(135deg,rgba(255,255,255,.2),rgba(255,255,255,.02)),
        repeating-linear-gradient(135deg,#2b1223 0 12px,#3d1730 12px 24px);
    }
    .news-wrap{display:grid;grid-template-columns:1.35fr .65fr;gap:24px;align-items:start}
    .list-panel,.side-panel,.card,.qa-card,.security-card,.price-card,.app-card,.faq-item{
      background:rgba(255,255,255,.78);border:1px solid var(--line-dark);
      border-radius:var(--radius-md);box-shadow:var(--shadow);backdrop-filter:blur(12px);
    }
    .list-panel{padding:12px}
    .post-link{
      display:grid;grid-template-columns:96px 1fr auto;gap:18px;align-items:center;
      padding:18px;border-radius:20px;transition:.22s ease;border:1px solid transparent;
    }
    .post-link:hover{background:#fff;transform:translateY(-2px);border-color:rgba(255,62,114,.16);box-shadow:0 14px 30px rgba(20,8,18,.08)}
    .date-block{
      height:72px;border-radius:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;
      background:linear-gradient(135deg,#1d1019,#54213a);color:#fff;font-weight:950;
    }
    .date-block small{font-size:11px;color:rgba(255,255,255,.68)}
    .post-title{font-size:18px;font-weight:1000;letter-spacing:-.02em;margin:0 0 6px}
    .post-excerpt{margin:0;color:var(--muted);font-size:14px;line-height:1.6}
    .post-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;color:var(--soft);font-size:12px;font-weight:800}
    .arrow-pill{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:rgba(255,62,114,.1);color:#9a2547;font-weight:1000}
    .empty-state{padding:32px;border-radius:20px;background:#fff;color:var(--muted);font-weight:800;text-align:center}
    .side-panel{padding:24px;position:sticky;top:96px}
    .rank-item{display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line-dark)}
    .rank-item:last-child{border-bottom:0}
    .rank-no{width:30px;height:30px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:1000}
    .rank-item strong{display:block;font-weight:950}
    .rank-item span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
    .qa-bento{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;margin-top:30px}
    .qa-card{padding:28px;position:relative;overflow:hidden}
    .qa-card.large{min-height:330px;background:linear-gradient(145deg,#1c0d18,#451a32 62%,#ff684d);color:#fff}
    .qa-card.large .muted{color:rgba(255,255,255,.74)}
    .qa-card.large:after{content:"";position:absolute;right:-70px;bottom:-100px;width:270px;height:270px;border-radius:50%;background:rgba(255,255,255,.12)}
    .qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .icon-badge{
      width:46px;height:46px;border-radius:17px;display:grid;place-items:center;
      background:rgba(255,62,114,.11);color:#b1244c;font-weight:1000;margin-bottom:14px;
    }
    .topic-lane{margin-top:30px;display:grid;grid-template-columns:.9fr 1.1fr;gap:24px}
    .topic-feature{
      border-radius:var(--radius-lg);min-height:390px;padding:30px;color:#fff;overflow:hidden;position:relative;
      background:
        linear-gradient(135deg,rgba(23,9,18,.88),rgba(23,9,18,.42)),
        radial-gradient(circle at 70% 22%,rgba(255,159,67,.75),transparent 25%),
        radial-gradient(circle at 24% 80%,rgba(255,62,114,.7),transparent 32%),
        linear-gradient(135deg,#220d1b,#511936);
      box-shadow:var(--shadow-strong);
    }
    .topic-feature:after{content:"";position:absolute;inset:26px;border:1px solid rgba(255,255,255,.12);border-radius:24px;pointer-events:none}
    .topic-list{display:grid;gap:14px}
    .topic-link{
      display:flex;justify-content:space-between;gap:18px;align-items:center;
      padding:20px 22px;border-radius:22px;background:#fff;border:1px solid var(--line-dark);
      box-shadow:0 14px 35px rgba(20,8,18,.07);transition:.22s ease;
    }
    .topic-link:hover{transform:translateX(4px);border-color:rgba(255,62,114,.22)}
    .topic-link strong{font-weight:1000}
    .topic-link span{color:var(--muted);font-size:14px}
    .security-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:30px}
    .security-card{padding:28px}
    .promise-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:24px}
    .promise{
      padding:18px 12px;border-radius:20px;background:#fff;text-align:center;border:1px solid var(--line-dark);
      transition:.22s ease;
    }
    .promise:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(20,8,18,.08)}
    .promise i{font-style:normal;font-size:24px;display:block;margin-bottom:8px}
    .chart-box{margin-top:18px;display:grid;gap:12px}
    .chart-row{display:grid;grid-template-columns:92px 1fr 54px;gap:12px;align-items:center;font-weight:850;color:var(--muted)}
    .chart-track{height:12px;border-radius:999px;background:#f1dbd6;overflow:hidden}
    .chart-track span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
    .price-card{padding:28px;position:relative;transition:.22s ease}
    .price-card:hover{transform:translateY(-5px);box-shadow:0 24px 65px rgba(20,8,18,.16)}
    .price-card.recommend{background:linear-gradient(180deg,#1c0d18,#3a1730);color:#fff;border-color:rgba(255,255,255,.14);transform:translateY(-10px)}
    .price-card.recommend p,.price-card.recommend li{color:rgba(255,255,255,.74)}
    .price-tag{font-size:38px;font-weight:1000;letter-spacing:-.04em;margin:14px 0}
    .price-tag small{font-size:14px;color:inherit;opacity:.68}
    .check-list{display:grid;gap:12px;margin:20px 0 24px;padding:0;list-style:none}
    .check-list li{display:flex;gap:10px;color:var(--muted);font-weight:750}
    .check-list li:before{content:"✓";color:var(--green);font-weight:1000}
    .app-stage{
      margin-top:30px;border-radius:var(--radius-lg);padding:34px;
      background:
        linear-gradient(135deg,rgba(27,17,25,.95),rgba(70,25,52,.94)),
        radial-gradient(circle at 80% 20%,rgba(255,159,67,.45),transparent 30%);
      color:#fff;box-shadow:var(--shadow-strong);
      display:grid;grid-template-columns:.85fr 1.15fr;gap:28px;align-items:center;overflow:hidden;position:relative;
    }
    .app-card{padding:24px;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.14);color:#fff}
    .device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .device{
      min-height:150px;border-radius:24px;padding:18px;
      background:linear-gradient(180deg,rgba(255,255,255,.16),rgba(255,255,255,.06));
      border:1px solid rgba(255,255,255,.14);
      display:flex;flex-direction:column;justify-content:space-between;
    }
    .device strong{font-size:18px}
    .device span{color:rgba(255,255,255,.7);font-size:13px}
    .faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:start;margin-top:30px}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-toggle{
      width:100%;display:flex;justify-content:space-between;gap:18px;align-items:center;
      padding:20px 22px;background:#fff;color:var(--ink);font-weight:1000;text-align:left;
    }
    .faq-toggle span:last-child{width:28px;height:28px;border-radius:50%;background:rgba(255,62,114,.1);display:grid;place-items:center;color:#b1244c;flex:0 0 auto}
    .faq-answer{display:none;padding:0 22px 22px;color:var(--muted);background:#fff}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-toggle span:last-child{transform:rotate(45deg)}
    .cta-panel{
      border-radius:var(--radius-lg);padding:44px;
      background:
        linear-gradient(135deg,rgba(255,62,114,.94),rgba(255,159,67,.88)),
        radial-gradient(circle at 20% 20%,rgba(255,255,255,.28),transparent 28%);
      color:#fff;display:flex;align-items:center;justify-content:space-between;gap:28px;
      box-shadow:0 30px 90px rgba(255,62,114,.28);
    }
    .cta-panel h2{font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.05em;font-weight:1000;margin:0 0 12px}
    .cta-panel p{color:rgba(255,255,255,.82);max-width:680px;margin:0}
    .site-footer{padding:58px 0 30px;background:#12070f;color:rgba(255,255,255,.72)}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-title{color:#fff;font-weight:1000;font-size:20px;margin-bottom:12px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:9px 12px;border-radius:999px;background:rgba(255,255,255,.08);transition:.22s ease}
    .footer-links a:hover{background:rgba(255,255,255,.14);color:#fff}
    .copyright{padding-top:24px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55)}
    @media (max-width:1024px){
      .nav-search{display:none}
      .hero-grid,.news-wrap,.qa-bento,.topic-lane,.security-wrap,.app-stage,.faq-wrap{grid-template-columns:1fr}
      .side-panel{position:static}
      .price-grid{grid-template-columns:1fr}
      .price-card.recommend{transform:none}
      .promise-row{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .nav-shell{height:68px}
      .nav-links,.nav-cta.desktop-only{display:none}
      .mobile-toggle{display:grid}
      .brand-text{font-size:16px}
      .hero{min-height:auto;padding:46px 0 46px}
      .hero-poster{padding:26px;min-height:auto}
      .hero h1{margin-top:34px}
      .hero-lead{font-size:16px}
      .group-card{padding:20px}
      .hero-stats,.qa-grid,.device-grid{grid-template-columns:1fr}
      .post-link{grid-template-columns:1fr;gap:12px}
      .date-block{width:96px}
      .arrow-pill{display:none}
      .section{padding:62px 0}
      .section-tight{padding:48px 0}
      .cta-panel{display:block;padding:30px}
      .cta-panel .hero-actions{margin-top:22px}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      .group-top{display:block}
      .status-badge{display:inline-flex;margin-top:12px}
      .poster-strip{grid-template-columns:1fr}
      .poster-strip .strip-side{min-height:74px}
      .promise-row{grid-template-columns:1fr}
      .topic-link{display:block}
      .topic-link span{display:block;margin-top:8px}
      .chart-row{grid-template-columns:1fr}
      .section-title{font-size:30px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: article */
:root{
      --bg:#0f0711;
      --bg-2:#180b17;
      --surface:#fff7f5;
      --surface-2:#fff1ec;
      --ink:#1b1119;
      --muted:#765f69;
      --soft:#b9939d;
      --line:rgba(255,255,255,.16);
      --line-dark:rgba(55,25,42,.12);
      --brand:#ff3e72;
      --brand-2:#ff9f43;
      --brand-3:#8b5cf6;
      --green:#37d399;
      --radius-lg:30px;
      --radius-md:22px;
      --radius-sm:14px;
      --shadow:0 20px 60px rgba(18,8,20,.18);
      --shadow-strong:0 35px 100px rgba(255,62,114,.22);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Microsoft YaHei","PingFang SC",Arial,sans-serif;
      line-height:1.65;
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 0%, rgba(255,62,114,.34), transparent 30%),
        radial-gradient(circle at 88% 12%, rgba(139,92,246,.28), transparent 34%),
        linear-gradient(180deg,#12070f 0%,#1a0c16 38%,#fff7f4 38%,#fff8f5 100%);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(255,62,114,.22);color:#fff}
    .site-container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:80;
      border-bottom:1px solid rgba(255,255,255,.12);
      background:rgba(18,7,16,.78);
      backdrop-filter:blur(18px);
      box-shadow:0 10px 40px rgba(0,0,0,.16);
    }
    .nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:900;letter-spacing:-.02em}
    .brand-mark{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      color:#fff;font-weight:900;
      background:linear-gradient(135deg,var(--brand),var(--brand-2) 56%,var(--brand-3));
      box-shadow:0 16px 38px rgba(255,62,114,.32);
    }
    .brand-text{font-size:18px;white-space:nowrap}
    .nav-area{display:flex;align-items:center;gap:14px}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-link{
      color:rgba(255,255,255,.78);
      padding:10px 15px;border-radius:999px;
      font-size:14px;font-weight:700;
      transition:.22s ease;
    }
    .nav-link:hover,.nav-link.active{color:#fff;background:rgba(255,255,255,.12)}
    .nav-link:focus-visible,.btn:focus-visible,.faq-toggle:focus-visible,.mobile-toggle:focus-visible,input:focus-visible,.play-button:focus-visible{
      outline:3px solid rgba(255,159,67,.55);outline-offset:3px;
    }
    .nav-search{
      width:238px;height:42px;border-radius:999px;
      display:flex;align-items:center;gap:8px;
      padding:0 14px;border:1px solid rgba(255,255,255,.13);
      background:rgba(255,255,255,.08);
      color:#fff;
    }
    .nav-search input{
      width:100%;border:0;outline:0;background:transparent;color:#fff;font-size:13px;
    }
    .nav-search input::placeholder{color:rgba(255,255,255,.55)}
    .nav-cta{
      color:#160b11;background:linear-gradient(135deg,#fff,#ffe2d3);
      padding:10px 16px;border-radius:999px;font-weight:900;font-size:14px;
      box-shadow:0 12px 30px rgba(255,159,67,.18);
      transition:.22s ease;
    }
    .nav-cta:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(255,159,67,.28)}
    .mobile-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      background:rgba(255,255,255,.1);color:#fff;
    }
    .mobile-panel{display:none;padding:0 0 18px}
    .mobile-panel.open{display:block}
    .mobile-panel .nav-link,.mobile-panel .nav-cta{display:block;margin:8px 0;text-align:center}
    main{position:relative}
    .section{padding:86px 0}
    .section-tight{padding:64px 0}
    .section-kicker{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      color:#9a2547;background:rgba(255,62,114,.1);
      border:1px solid rgba(255,62,114,.16);
      font-weight:900;font-size:13px;
    }
    .section-title{
      margin:16px 0 12px;
      font-size:clamp(30px,4vw,50px);
      line-height:1.12;letter-spacing:-.04em;font-weight:950;
    }
    .section-desc{max-width:740px;color:var(--muted);font-size:17px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      border-radius:999px;padding:13px 20px;font-weight:900;
      transition:.22s ease;white-space:nowrap;
    }
    .btn-primary{
      color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 18px 42px rgba(255,62,114,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 52px rgba(255,62,114,.36)}
    .btn-ghost{
      color:#fff;border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.08);
    }
    .btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
    .btn-dark{
      color:#fff;background:#1a0c16;box-shadow:0 14px 34px rgba(26,12,22,.18);
    }
    .btn-dark:hover{transform:translateY(-2px);background:#24101f}
    .badge{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      font-weight:900;font-size:13px;
      color:#fff;background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.15);
      backdrop-filter:blur(10px);
    }
    .article-hero{
      color:#fff;position:relative;overflow:hidden;
      min-height:540px;display:flex;align-items:center;
      padding:86px 0 74px;
      background:
        linear-gradient(105deg,rgba(15,7,17,.94),rgba(15,7,17,.66) 52%,rgba(15,7,17,.95)),
        radial-gradient(circle at 78% 26%,rgba(255,159,67,.5),transparent 26%),
        radial-gradient(circle at 18% 76%,rgba(255,62,114,.42),transparent 28%),
        linear-gradient(135deg,#250b1c,#12070f);
    }
    .article-hero:before{
      content:"";position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px),
        linear-gradient(0deg,rgba(255,255,255,.04) 1px,transparent 1px);
      background-size:62px 62px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.86),transparent 86%);
      pointer-events:none;
    }
    .article-hero:after{
      content:"";position:absolute;inset:auto -120px -170px auto;width:520px;height:520px;border-radius:50%;
      border:1px solid rgba(255,255,255,.13);
      box-shadow:inset 0 0 120px rgba(255,62,114,.14);
    }
    .article-hero-grid{
      position:relative;z-index:2;
      display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:34px;align-items:stretch;
    }
    .article-title-panel{
      padding:42px;border-radius:var(--radius-lg);
      background:
        linear-gradient(145deg,rgba(255,255,255,.14),rgba(255,255,255,.045)),
        radial-gradient(circle at 8% 10%,rgba(255,255,255,.14),transparent 28%);
      border:1px solid rgba(255,255,255,.16);
      box-shadow:var(--shadow-strong);
      backdrop-filter:blur(16px);
      position:relative;overflow:hidden;
    }
    .article-title-panel:before{
      content:"";position:absolute;right:-90px;bottom:-120px;width:330px;height:330px;border-radius:50%;
      background:linear-gradient(135deg,rgba(255,62,114,.45),rgba(255,159,67,.24));
      filter:blur(3px);
    }
    .crumbs{
      position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
      color:rgba(255,255,255,.68);font-weight:800;font-size:13px;
    }
    .crumbs a{color:#fff}
    .article-hero h1{
      position:relative;z-index:1;
      margin:28px 0 18px;
      font-size:clamp(38px,5.8vw,72px);
      line-height:1.02;letter-spacing:-.06em;font-weight:1000;
      max-width:900px;overflow-wrap:anywhere;
    }
    .article-summary{
      position:relative;z-index:1;max-width:760px;
      color:rgba(255,255,255,.78);font-size:18px;
    }
    .article-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
    .video-card{
      border-radius:var(--radius-lg);overflow:hidden;
      border:1px solid rgba(255,255,255,.16);
      background:
        linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.045)),
        radial-gradient(circle at 50% 0%,rgba(255,159,67,.22),transparent 40%);
      box-shadow:0 28px 82px rgba(0,0,0,.22);
      backdrop-filter:blur(14px);
      display:flex;flex-direction:column;
    }
    .video-mask{
      min-height:270px;position:relative;display:grid;place-items:center;
      background:
        linear-gradient(180deg,rgba(15,7,17,.1),rgba(15,7,17,.86)),
        repeating-linear-gradient(90deg,rgba(255,255,255,.08) 0 2px,transparent 2px 18px),
        linear-gradient(135deg,rgba(255,62,114,.5),rgba(139,92,246,.42) 52%,rgba(255,159,67,.42));
    }
    .video-mask:after{
      content:"";position:absolute;inset:18px;border:1px solid rgba(255,255,255,.14);
      border-radius:24px;pointer-events:none;
    }
    .play-button{
      width:78px;height:78px;border-radius:50%;display:grid;place-items:center;
      color:#1b1119;background:linear-gradient(135deg,#fff,#ffe2d3);
      box-shadow:0 20px 50px rgba(255,159,67,.28);
      transition:.22s ease;font-size:26px;padding-left:4px;
    }
    .play-button:hover{transform:scale(1.06)}
    .video-info{padding:24px}
    .video-info h2{font-size:21px;line-height:1.25;font-weight:950;margin:0 0 10px}
    .video-info p{color:rgba(255,255,255,.72);margin:0;font-size:14px}
    .meta-strip{
      margin-top:18px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px;
    }
    .meta-chip{
      padding:12px 10px;border-radius:18px;background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);text-align:center;
    }
    .meta-chip strong{display:block;font-size:18px;line-height:1;color:#fff}
    .meta-chip span{display:block;margin-top:6px;font-size:12px;color:rgba(255,255,255,.62)}
    .article-layout{
      display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:32px;align-items:start;
    }
    .content-card,.side-card,.wide-card{
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.78);
      border:1px solid var(--line-dark);
      box-shadow:var(--shadow);
    }
    .content-card{padding:42px}
    .article-body{
      color:#2a1b25;font-size:17px;overflow-wrap:anywhere;
    }
    .article-body > *:first-child{margin-top:0}
    .article-body h2,.article-body h3,.article-body h4{
      color:#1b1119;font-weight:950;line-height:1.22;letter-spacing:-.03em;
      margin:34px 0 14px;
    }
    .article-body h2{font-size:30px}
    .article-body h3{font-size:24px}
    .article-body h4{font-size:20px}
    .article-body p{margin:16px 0;color:#3b2a34}
    .article-body a{color:#d92f61;font-weight:850;border-bottom:1px solid rgba(255,62,114,.25)}
    .article-body a:hover{color:#a91f48;border-bottom-color:rgba(255,62,114,.5)}
    .article-body ul,.article-body ol{margin:18px 0;padding-left:1.4em;color:#3b2a34}
    .article-body li{margin:8px 0}
    .article-body blockquote{
      margin:26px 0;padding:22px 24px;border-radius:22px;
      border-left:5px solid var(--brand);
      background:linear-gradient(135deg,rgba(255,62,114,.1),rgba(255,159,67,.08));
      color:#4b2f3e;font-weight:750;
    }
    .article-body img{
      border-radius:24px;box-shadow:0 18px 44px rgba(18,8,20,.12);
      margin:24px auto;
    }
    .article-body table{
      width:100%;border-collapse:separate;border-spacing:0;margin:24px 0;
      border:1px solid var(--line-dark);border-radius:20px;overflow:hidden;
      background:#fff;
    }
    .article-body th,.article-body td{padding:14px 16px;border-bottom:1px solid var(--line-dark);text-align:left}
    .article-body th{background:#fff1ec;font-weight:950;color:#24101f}
    .article-body tr:last-child td{border-bottom:0}
    .empty-state{
      text-align:center;padding:58px 24px;border-radius:28px;
      background:linear-gradient(135deg,rgba(255,62,114,.08),rgba(255,159,67,.08));
      border:1px dashed rgba(255,62,114,.28);
    }
    .empty-state h2{font-size:30px;font-weight:950;margin:0 0 10px}
    .empty-state p{color:var(--muted);margin:0 0 24px}
    .sidebar{position:sticky;top:98px;display:grid;gap:18px}
    .side-card{padding:24px}
    .side-title{font-size:18px;font-weight:950;margin:0 0 16px}
    .param-list{display:grid;gap:12px}
    .param-item{
      display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
      padding:13px 0;border-bottom:1px solid rgba(55,25,42,.1);
    }
    .param-item:last-child{border-bottom:0}
    .param-item span{color:var(--muted);font-size:14px}
    .param-item strong{font-size:14px;text-align:right;color:#22131d}
    .download-bar{
      padding:20px;border-radius:24px;
      background:linear-gradient(135deg,#1b0b17,#351329);
      color:#fff;position:relative;overflow:hidden;
    }
    .download-bar:before{
      content:"";position:absolute;right:-60px;top:-60px;width:160px;height:160px;border-radius:50%;
      background:rgba(255,62,114,.38);
    }
    .download-bar h3,.download-bar p,.download-bar a{position:relative;z-index:1}
    .download-bar h3{margin:0 0 8px;font-size:20px;font-weight:950}
    .download-bar p{margin:0 0 16px;color:rgba(255,255,255,.72);font-size:14px}
    .side-tags{display:flex;flex-wrap:wrap;gap:8px}
    .side-tags span{
      padding:7px 10px;border-radius:999px;
      background:rgba(255,62,114,.09);color:#9a2547;
      border:1px solid rgba(255,62,114,.13);
      font-weight:850;font-size:12px;
    }
    .gallery-shell{
      margin-top:32px;padding:26px;border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(255,255,255,.72),rgba(255,241,236,.72));
      border:1px solid var(--line-dark);box-shadow:var(--shadow);
      overflow:hidden;
    }
    .gallery-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:18px}
    .gallery-head h2{font-size:28px;line-height:1.15;font-weight:950;margin:0}
    .gallery-head p{color:var(--muted);margin:8px 0 0}
    .gallery-controls{display:flex;gap:8px}
    .gallery-btn{
      width:42px;height:42px;border-radius:14px;
      background:#1a0c16;color:#fff;transition:.22s ease;
    }
    .gallery-btn:hover{transform:translateY(-2px);background:#2a1324}
    .screen-row{
      display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
      padding:4px 4px 14px;scrollbar-color:rgba(255,62,114,.45) transparent;
    }
    .screen-card{
      flex:0 0 310px;scroll-snap-align:start;
      border-radius:24px;overflow:hidden;
      background:#1a0c16;color:#fff;
      border:1px solid rgba(55,25,42,.12);
      box-shadow:0 18px 42px rgba(18,8,20,.14);
    }
    .screen-visual{
      height:176px;position:relative;
      background:
        radial-gradient(circle at 20% 20%,rgba(255,255,255,.22),transparent 22%),
        linear-gradient(135deg,rgba(255,62,114,.9),rgba(139,92,246,.78) 55%,rgba(255,159,67,.86));
    }
    .screen-visual:after{
      content:"";position:absolute;left:18px;right:18px;bottom:18px;height:64px;border-radius:18px;
      background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.18);
      box-shadow:0 -30px 0 rgba(255,255,255,.08);
    }
    .screen-card div:last-child{padding:18px}
    .screen-card h3{font-size:18px;font-weight:950;margin:0 0 6px}
    .screen-card p{margin:0;color:rgba(255,255,255,.7);font-size:14px}
    .related-grid{
      display:grid;grid-template-columns:1.05fr .95fr;gap:22px;
    }
    .proof-card{
      padding:28px;border-radius:var(--radius-lg);
      background:#1a0c16;color:#fff;box-shadow:var(--shadow);
      position:relative;overflow:hidden;
    }
    .proof-card:before{
      content:"";position:absolute;right:-80px;top:-90px;width:220px;height:220px;border-radius:50%;
      background:linear-gradient(135deg,rgba(255,62,114,.42),rgba(255,159,67,.22));
    }
    .proof-card h2,.proof-card p,.proof-stats{position:relative;z-index:1}
    .proof-card h2{font-size:32px;font-weight:950;line-height:1.15;margin:0 0 10px}
    .proof-card p{color:rgba(255,255,255,.72);margin:0}
    .proof-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .proof-stat{
      padding:16px 12px;border-radius:18px;background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
    }
    .proof-stat strong{display:block;font-size:24px;line-height:1;font-weight:1000}
    .proof-stat span{display:block;margin-top:8px;color:rgba(255,255,255,.62);font-size:12px}
    .note-list{
      padding:28px;border-radius:var(--radius-lg);
      background:rgba(255,255,255,.78);border:1px solid var(--line-dark);
      box-shadow:var(--shadow);
    }
    .note-list h2{font-size:26px;font-weight:950;margin:0 0 16px}
    .note-item{
      display:flex;gap:14px;padding:15px 0;border-bottom:1px solid rgba(55,25,42,.1);
    }
    .note-item:last-child{border-bottom:0}
    .note-dot{
      width:28px;height:28px;border-radius:50%;
      flex:0 0 auto;display:grid;place-items:center;
      color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2));
      font-size:13px;font-weight:950;
    }
    .note-item strong{display:block;font-weight:950}
    .note-item p{margin:4px 0 0;color:var(--muted);font-size:14px}
    .faq-wrap{
      display:grid;grid-template-columns:.82fr 1.18fr;gap:28px;align-items:start;
    }
    .faq-list{display:grid;gap:12px}
    .faq-item{
      border-radius:22px;background:rgba(255,255,255,.78);
      border:1px solid var(--line-dark);box-shadow:0 12px 34px rgba(18,8,20,.08);
      overflow:hidden;
    }
    .faq-toggle{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
      background:transparent;padding:20px 22px;text-align:left;
      color:#1b1119;font-weight:950;
    }
    .faq-toggle span:last-child{
      width:28px;height:28px;border-radius:10px;display:grid;place-items:center;
      background:rgba(255,62,114,.09);color:#9a2547;flex:0 0 auto;
      transition:.22s ease;
    }
    .faq-answer{display:none;padding:0 22px 20px;color:var(--muted)}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-toggle span:last-child{transform:rotate(45deg)}
    .cta-panel{
      position:relative;overflow:hidden;border-radius:36px;padding:46px;
      color:#fff;background:
        radial-gradient(circle at 80% 20%,rgba(255,159,67,.5),transparent 28%),
        linear-gradient(135deg,#1a0c16,#39152e);
      box-shadow:0 30px 80px rgba(18,8,20,.2);
    }
    .cta-panel:before{
      content:"";position:absolute;left:-120px;bottom:-160px;width:380px;height:380px;border-radius:50%;
      background:rgba(255,62,114,.34);
    }
    .cta-content{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta-content h2{font-size:clamp(30px,4vw,48px);line-height:1.12;font-weight:1000;letter-spacing:-.04em;margin:0 0 12px}
    .cta-content p{margin:0;color:rgba(255,255,255,.74);max-width:680px}
    .cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
    .site-footer{
      padding:54px 0 30px;color:rgba(255,255,255,.72);
      background:#10070f;border-top:1px solid rgba(255,255,255,.1);
    }
    .footer-grid{
      display:grid;grid-template-columns:1fr 260px;gap:34px;align-items:start;
    }
    .footer-title{color:#fff;font-weight:950;margin-bottom:14px}
    .footer-links{display:grid;gap:10px}
    .footer-links a{transition:.22s ease}
    .footer-links a:hover{color:#fff;transform:translateX(3px)}
    .copyright{
      margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
      display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
      font-size:13px;color:rgba(255,255,255,.55);
    }
    @media (max-width:1024px){
      .nav-search{display:none}
      .article-hero-grid,.article-layout,.related-grid,.faq-wrap{grid-template-columns:1fr}
      .sidebar{position:static}
      .video-card{max-width:none}
      .cta-content{align-items:flex-start;flex-direction:column}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:768px){
      .site-container{width:min(var(--container),calc(100% - 28px))}
      .nav-shell{height:68px}
      .desktop-only,.nav-links{display:none}
      .mobile-toggle{display:grid;place-items:center}
      .brand-text{font-size:16px}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .article-hero{min-height:auto;padding:54px 0 46px}
      .article-title-panel{padding:28px;border-radius:24px}
      .article-hero h1{margin-top:22px}
      .article-summary{font-size:16px}
      .content-card{padding:26px;border-radius:24px}
      .article-body{font-size:16px}
      .article-body h2{font-size:26px}
      .section{padding:62px 0}
      .section-tight{padding:48px 0}
      .meta-strip,.proof-stats{grid-template-columns:1fr}
      .gallery-head{align-items:flex-start;flex-direction:column}
      .screen-card{flex-basis:280px}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .site-container{width:min(var(--container),calc(100% - 22px))}
      .article-title-panel{padding:22px}
      .article-actions,.cta-actions{width:100%;flex-direction:column}
      .btn{width:100%;white-space:normal}
      .content-card,.side-card,.gallery-shell,.proof-card,.note-list{border-radius:22px}
      .gallery-shell{padding:18px}
      .cta-panel{padding:30px 22px;border-radius:26px}
      .crumbs{font-size:12px}
      .article-hero h1{font-size:clamp(34px,12vw,52px)}
    }